Question

(y – 3)(y + 5) – 2y(y – 1) = (y – 3)(y - 2) + 6 –2y2

Answer 1

y2+5y-3y-15-2y2+2y=y2-2y-3y+6+6-2y2
12-5y=4y-15
27=9y
3=y
La variable "y" es igual a 3